Rolling bearing having two inner rings and a seal arrangement for sealing the parting joint between the inner rings
View Patent ↗The seat adjustment mechanism has a housing with an outer ring and an inner ring. The rings are arranged concentrically. Clamping bodies interact with double clamping ramps on the rings and are arranged in an annular space between the rings. Spring supports pivot in relation to each other, interact with a stop on the housing, are arranged concentrically with the rings, and engage in each case both in the annular space and in an inner space arranged radially within the inner ring. The spring supports are braced in relation to each other by a spring, which is arranged in the inner space to secure the clamping bodies in the center of the double clamping ramps. Stop surfaces of the spring supports are acted upon by a force in the direction in which they are minimally spaced apart.
1. A rolling bearing comprising:
at least one outer ring;
a multipart inner ring comprising two adjacent inner rings bearing against each other, each of the inner rings have an end side which point toward each other, a raceway, and an indentation forming an annular groove between the inner rings, the indentation is formed in a region of each of the inner rings that faces the outer ring;
rolling bodies arranged between the outer ring and the inner rings; and
a ring seal arranged in the annular groove of the inner rings,
wherein the annular groove has, viewed in axial cross-section, a greater axial length in region of the base of the annular groove than in a radially outer region of the annular groove.
2. The rolling bearing of claim 1 , wherein the indentation of at least one of the rings has an undercut.
3. The rolling bearing of claim 1 , wherein the annular groove has, viewed in axial cross-section, the greater axial length in the region of the base than in a region of a radial opening of the annular groove.
4. The rolling bearing of claim 1 , wherein the annular groove has a constricted radial opening formed by radially external and axially oriented annular webs on the indentation of each of the inner rings.
5. The rolling bearing of claim 1 , wherein, at least in the region of the indentation of each of the inner rings, the ring seal is in contact with the inner rings, and at least one axial end face of the ring seal has, at least in a region of contact prior to insertion of the ring seal into the annular groove, a flat, radially outwardly extending surface.
6. The rolling bearing of claim 1 , wherein the ring seal has axial end faces, which each have, at least in a region of contact prior to insertion of the ring seal into the annular groove, a flat, radially outwardly extending surface.
7. The rolling bearing of claim 1 , wherein ring seal has a radially inner portion comprising a right annular web and a left annular web, a radially outer portion comprising a right annular web and a left annular web, a right constriction and a left constriction is formed between the annular webs of the inner portion and the outer portion, a first radial end face extending entirely linearly between the right annular web and the left annular web of the radially inner portion, and a second radial end face extending linearly between the right annular web and the left annular web of the radially outer portion the ring seal being substantially inserted axially into the annular groove of the inner rings.
8. The rolling bearing of claim 1 , wherein the ring seal is made of a resilient rubber material.
9. The rolling hearing of claim 1 , wherein the rolling bearing is a multiple-row tapered roller bearing, the rolling bodies are obliquely positioned in an O-shaped arrangement or X-shaped arrangement, and the inner rings are held axially adjacent to each other by means of an annular clasp.
10. The rolling bearing of claim 9 , wherein the annular clasp, which is made of metallic material, has a U-shaped cross-section and is inserted into a circumferential groove on a side of each of the inner rings, which is remote from the rolling bodies and remote from the ring seal.
11. The rolling bearing of claim 1 , wherein the indentations on the end side of each of the inner rings have a different axial and/or radial length or depth.
12. The rolling hearing of claim 1 , further comprising sealing means which axially seal a receiving space between the rolling bodies.
13. The rolling bearing of claim 1 , wherein the indentation in both of the inner rings has an undercut.